Promethium (Pm) - 61 on the Periodic Table | Periodic Table

Standard IUPAC: Promethium • Symbol: Pm • Atomic Mass: 145 u

Quick Factsheet: Promethium (symbol Pm, atomic number 61) is element 61 on the periodic table of elements. It has a standard atomic weight of 145 u and an electron configuration of [Xe] 6s2 4f5. On the periodic table, Promethium is classified in period 6 and group Main.

1. Periodic Table Position of Promethium (61 on the Periodic Table)

Element Promethium has atomic number Z = 61, meaning it contains 61 protons in its atomic nucleus and 61 electrons in its neutral state. On the standard periodic table of elements, Promethium is located in period 6 and group Main.

2. Electron Configuration & Oxidation States (Promethium Charges & Configuration)

Full Electron Configuration: [Xe] 6s2 4f5

Common Oxidation States (Charges): 3c

3. Physical Properties & Atomic Mass (Promethium Atomic Mass)

Element Promethium has a standard atomic weight of 145 u. Its melting point is 1373. K and boiling point is 3273. K. The Pauling electronegativity value is N/A.

Comprehensive chemical properties and data for Promethium (Pm, Z=61).

Explore interactive 3D electron orbitals, isotopes, and properties on the periodic table: Open on Interactive Table 🚀

4. Related Elements in the Same Chemical Family

La (Z=57) Ce (Z=58) Pr (Z=59) Nd (Z=60) Sm (Z=62) Eu (Z=63)

5. Frequently Asked Questions about Promethium (FAQ)

What is the chemical symbol and atomic number of Promethium?

The chemical symbol of Promethium is Pm and its atomic number is 61.

What is the atomic mass and electron configuration of Promethium?

Promethium has a standard atomic mass of 145 u and ground-state electron configuration of [Xe] 6s2 4f5.

What periodic table group and period does Promethium belong to?

Promethium is located in period 6 and group Main on the periodic table of elements.

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